HelloHow much I had read here on other posts I figure it:Full Tier set give bonus in Gear score-heroes, is it full set 4 pieces or all 5 (example T10)I have 4 pieces T10 and hands 277lvl, Is it better to have all 5 T10 (264lvl)

If admin can explain me and my mate gear score?if I sum all score (know it is not right way) I have 4540 he have 4509 in Heroes gear score I have 3322 he have 3335How much on Heroes gear score is worth hands from T10.5 (resto droo) and how much is worth my hands 277lvl